How I Built a Real-Time DDoS Detection Engine from Scratch Introduction Imagine you own a popular website. Thousands of people visit every day. Then one morning, a hacker sends millions of fake requests to your server all at once — trying to crash it. This is called a DDoS attack (Distributed Denial of Service). For HNG Stage 3, I was tasked with building a system that: Watches all incoming web traffic in real time Learns what "normal" traffic looks like Automatically detects and blocks attackers Sends instant Slack alerts Shows everything on a live dashboard Here's exactly how I built it — explained simply enough that a complete beginner can follow along.…